Fritz oelce



(No Model.)

RUBLGE.

- ,SHEARS. K No1-355,299. y l Patent-ed Jan. 4, 1887.

. .invention-applied. Fig.2 isa sans 1 corresponding .holes inthe blades A andd,

-chusetts, ful Improvements in Shears, of which the fola wrench o1' other tool, and fitting a corresponding threaded. hole in the,

UNITED 7 SEMES,

PATENT; IOFFICE.

4Fnrrz onLcn-onnonronn, MASSACHUSETTS, Assrenon fro fran-'HENRY SEYMOUR QUTLERY COMPANY, OFv SAME PLACE.'

*sns/iss.

4BPEIFI'CATIQN forming part` o Letters Patent No. 355,299, d ated January 4; 1881.

i Application filed June 3,11586.

To aZZ. whom it met!!l concern:

Be it known -thatL FRITZ (lanen, a citizen of the UnitedStates, residing at'Holyoke, in

the county of Hampden and 'State of Massahavxe'invented certainl newiand use-y lowing is a'speciication, reference being hadv to the accompanying drawings, forming a part thereof. vl against each n'the'r by means of .an adjustable springarranged to act up'on a loose bolt at the piv0t-joiut. .Y

The objects off-my .improvements are, first,

between thecuttingblades at the crossing edge; second, to lessen the cost oi manufacture, and, third, to avoid .the unhealthy dry-grinding refA quired in themanufacture'of shears of ordinary construction. l In the accompanying-f drawings, Figure 1 is a side ele'vation-ol' a pair of shears with In plan View of the same; ad Figs. 3,74-, 5, and 6 are views of the various parts detached. A y 'Similar 'letters refer to like parts 'thx-ough-V out the several views. v

In Figs. 1 and 2,`

4 Through these The'pinon bolt C is shown in detail in Figs.4 Aet, a being a head, b aneck cut'undersaid head a, c the portion of the bolt iitting and d a head -to form a bearing] for the b'olt against the side of the blade B. l Thescrew El(shown in detail in'vFig. @Tiras a head, h, of suitable formytobe turned with a threaded'end,- z,

blade A. This-screw E is for ,the-purpose of adjusting thepressnre of the .spring D upon 4s the bolt C, as will be next explained. The spring D is bentnear. the center, as shown in slotted to iit the neck'b-of the lbolt C'. Near invention relates to that class of scissors sheajrs 'iiiwhich the cutting-blades arefheld.

. A is the `right-hand blade'v .and B the vleila-hand" blade.

blades at the pivot-joint. passes the pivotgpin.' .0, but is not `rigidly connected to either blade.

detail in Fig. 5 atf. 'The'end e isv Serial No. 104.002. (No modem' .admit .the adjusting-screw E. As shown in 54- Fig. 2, this spring bears upon .the blade at -a poin't or line nearthe center of said spring, the end c presses up under the head a. of the 'bolt C, tending to' draw the two blades together, while the end g of the spring is slightly raisedabove the surface'ofthe blade, but may e drawn nearer to the'surfacc by screwing in the adjustingscrew E. U

By the 'arrangement describeihwhen E 1s screwed in, thus drawing down the end g, the end e is raised, thus increasing the pressure with which thextwo-blades are drawn together.

V By changing-fthe position ot'- the screwfF, the

pressure may beadjusted to lany desired amount?" 'By-the-elasticityof thespringi) thel pressure is maintained at the crossing edge 'of the blades even when not groundtrue'. By reason of -this spring attachment-and adj ustabletension, proper action is secured without the final ,dry-,grinding to hringthe blades to perfect truth that is necessary with ordinary yconstructions, thus Saving expense anddoingaway with a very unhealthy process. The Substitution of a loose joint pin or bolt O in place of an accurately fitted and. rigidly-se:

-.curedone is 'another material saving in the expense of manufacture. 2

4Intheblt C the ne'ck b may be slotted on two sides to recel-ve the slot intheend of the spring asfshown in Fig. 3; orit may belei't round, andthe slot in the spring made suiiicientlylarge to accommodate it., vThe latter constructionjs shown in Fig'. 4.' With the former construction the bolt isprevented from turning, the head a is preserved' from serious wear, and the Wear is brought upon Vthe head d.. .1n the latter form, as ,in Fig. 4, more wear comes upon the heada, as thel bolt is free to turn'` and bring different-parts into contact with the spring.

I am aware that prior to my invention shears. have been constructed with a-'springl bearing upon a ivot-pin'. .Patent No. 330,813 is -oi this clas: haring a non-adj unstable spring bearing upon a. .,blacles. I' amalso aware that ,a spring has j been used i'nconneot'io'n with a'pivot-pin passng loosely through both blades of a pair of pin rigidly securedto one of the 95 shears, as shown in Patent; No. 102,944. do no afubgfruna bonring against one of said'blaes,

nobthreforo claim bho combilwtiono f-oJ spring said spring boing; :slotted ab one endto om- A und pivot-pin, broadly; but `brace said neck, and an attaching and adj nst- What I do claim as my invention, and do ing screw passing' through said spring near ibo i 5 sin?b1 to secllare by Letter? Patzont.,f 1ST- b 1 other end, substantially as set forth. hecm ina-tion, wit, mpuiro shoa1- la( os, of a. pivot"`?r!2 pin passing loosely through boLh FRH CELUI!" of said blades andhaving n hemd, (Loh one Nif'ilnossos: ond and a. neck, b, near tho other omi, a, lov r- H; SEYMOUR, xo'springhavingnbond between .its ends to servo y .11. K'. HAWES.

record of the case in the Patent-Omoo It isheloby `certified that in Letters .Patel-1i; No. 355,299, granted January 1887, upon the ap`plioaoion of Fritz Oloe, of Holyoke, Mn-ssaohuso is, for nu Vinlproveinont in Shears'f7 an error appoaro in the printed':booontiou requiring correction, :is follows: In line 7,'page 2, tho words pivotod' pin, should roald Woof-pin; @nd tha-t the Lettezjs Patent bfhould be read with lthis: correction therein that bho somo mago,7 conform to .tho

Signed, Voountersignod;and 'sfonlod thi 15th .day'of @einem-f5.3 D. 1887. [SEAL] I). L. HAWKMS,

' Act/ng iS'emetm-g/ of iz-e Interim'. Oounbers'igned: 4

` R. B. VANOE,

A ctz'ng Commissioner of Patents. 

